CVE-2026-92091
mediumA flaw was found in jwcrypto.
A flaw was found in jwcrypto. The JWK.import_key() function validates the key_ops JWK member for duplicate values using an algorithm with O(n^2) time complexity, and the length of key_ops is not bounded. A remote, unauthenticated attacker can supply a JWK with a large key_ops array to an application that passes attacker-controlled key material to a public key-import API (reachable via ECDH-ES key agreement, OIDC dynamic client registration, DPoP, or ACME account key registration, among others) to consume excessive CPU time, resulting in a denial of service.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/security/cve/CVE-2026-92091 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2533849 secalert@redhat.com
- https://github.com/latchset/jwcrypto/security/advisories/GHSA-pwgw-f7xr-863h secalert@redhat.com
- https://github.com/latchset/jwcrypto/security/advisories/GHSA-pwgw-f7xr-863h 134c704f-9b21-4f2e-91b3-4a467353bcc0